src/mathed/formulabase.C

   1 /**
   2  * \file formulabase.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author André Pönitz
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "formulabase.h"
  15 #include "support/std_sstream.h"
  16 #include "support/LAssert.h"
  17 #include "formula.h"
  18 #include "formulamacro.h"
  19 #include "funcrequest.h"
  20 #include "BufferView.h"
  21 #include "lyxtext.h"
  22 #include "gettext.h"
  23 #include "debug.h"
  24 #include "math_support.h"
  25 #include "support/lstrings.h"
  26 #include "support/lyxlib.h"
  27 #include "frontends/LyXView.h"
  28 #include "math_arrayinset.h"
  29 #include "math_deliminset.h"
  30 #include "math_cursor.h"
  31 #include "math_factory.h"
  32 #include "math_hullinset.h"
  33 #include "math_parser.h"
  34 #include "math_spaceinset.h"
  35 #include "undo_funcs.h"
  36 #include "frontends/Dialogs.h"
  37 #include "ref_inset.h"
  38
  39
  40 using namespace lyx::support;
  41
  42 using std::endl;
  43 using std::istringstream;
  44 using std::ostream;
  45 using std::ostringstream;
  46 using std::vector;
  47 using std::abs;
  48 using std::max;
  49
  50
  51 MathCursor * mathcursor = 0;
  52
  53 namespace {
  54
  55 // local global
  56 int first_x;
  57 int first_y;
  58
  59 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  60 {
  61         if (!bv->insertInset(new_inset)) {
  62                 delete new_inset;
  63                 return false;
  64         }
  65         new_inset->localDispatch(FuncRequest(bv, LFUN_INSET_EDIT, "left"));
  66         return true;
  67 }
  68
  69
  70 } // namespace anon
  71
  72
  73
  74 InsetFormulaBase::InsetFormulaBase()
  75         : view_(0), xo_(0), yo_(0)
  76 {
  77         // This is needed as long the math parser is not re-entrant
  78         initMath();
  79         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << endl;
  80         //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << endl;
  81         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << endl;
  82         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << endl;
  83 }
  84
  85
  86 // simply scrap this function if you want
  87 void InsetFormulaBase::mutateToText()
  88 {
  89 #if 0
  90         // translate to latex
  91         ostringstream os;
  92         latex(NULL, os, false, false);
  93         string str = os.str();
  94
  95         // insert this text
  96         LyXText * lt = view_->getLyXText();
  97         string::const_iterator cit = str.begin();
  98         string::const_iterator end = str.end();
  99         for (; cit != end; ++cit)
 100                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 101
 102         // remove ourselves
 103         //view_->owner()->dispatch(LFUN_ESCAPE);
 104 #endif
 105 }
 106
 107
 108 void InsetFormulaBase::handleFont
 109         (BufferView * bv, string const & arg, string const & font)
 110 {
 111         // this whole function is a hack and won't work for incremental font
 112         // changes...
 113         recordUndo(bv, Undo::ATOMIC);
 114
 115         if (mathcursor->inset()->name() == font)
 116                 mathcursor->handleFont(font);
 117         else {
 118                 mathcursor->handleNest(createMathInset(font));
 119                 mathcursor->insert(arg);
 120         }
 121 }
 122
 123
 124 BufferView * InsetFormulaBase::view() const
 125 {
 126         return view_;
 127 }
 128
 129
 130 void InsetFormulaBase::validate(LaTeXFeatures &) const
 131 {}
 132
 133
 134 string const InsetFormulaBase::editMessage() const
 135 {
 136         return _("Math editor mode");
 137 }
 138
 139
 140 void InsetFormulaBase::insetUnlock(BufferView * bv)
 141 {
 142         if (mathcursor) {
 143                 if (mathcursor->inMacroMode()) {
 144                         mathcursor->macroModeClose();
 145                         bv->updateInset(this);
 146                 }
 147                 releaseMathCursor(bv);
 148         }
 149         generatePreview();
 150         bv->updateInset(this);
 151 }
 152
 153
 154 void InsetFormulaBase::getCursor(BufferView &, int & x, int & y) const
 155 {
 156         mathcursor->getPos(x, y);
 157 }
 158
 159
 160 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 161 {
 162         // calling metrics here destroys the cached xo,yo positions e.g. in
 163         // MathParboxinset. And it would be too expensive anyway...
 164         //metrics(bv);
 165         if (!mathcursor) {
 166                 lyxerr << "getCursorPos - should not happen";
 167                 x = y = 0;
 168                 return;
 169         }
 170         mathcursor->getPos(x, y);
 171         x = mathcursor->targetX();
 172         x -= xo_;
 173         y -= yo_;
 174         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 175 }
 176
 177
 178 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 179 {
 180         if (!mathcursor)
 181                 return;
 182         int x, y, asc, des;
 183         asc = 10;
 184         des = 2;
 185         //math_font_max_dim(font_, asc, des);
 186         getCursorPos(bv, x, y);
 187         //y += yo_;
 188         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << endl;
 189         bv->fitLockedInsetCursor(x, y, asc, des);
 190 }
 191
 192
 193 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 194 {
 195         if (mathcursor)
 196                 bv->updateInset(this);
 197 }
 198
 199
 200 dispatch_result InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 201 {
 202         if (!mathcursor)
 203                 return UNDISPATCHED;
 204
 205         BufferView * bv = cmd.view();
 206         bv->updateInset(this);
 207         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 208
 209         if (cmd.button() == mouse_button::button3) {
 210                 // try to dispatch to enclosed insets first
 211                 if (mathcursor->dispatch(cmd) == UNDISPATCHED) {
 212                         // launch math panel for right mouse button
 213                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 214                         bv->owner()->getDialogs().show("mathpanel");
 215                 }
 216                 return DISPATCHED;
 217         }
 218
 219         if (cmd.button() == mouse_button::button2) {
 220                 MathArray ar;
 221                 asArray(bv->getClipboard(), ar);
 222                 mathcursor->selClear();
 223                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 224                 mathcursor->insert(ar);
 225                 bv->updateInset(this);
 226                 return DISPATCHED;
 227         }
 228
 229         if (cmd.button() == mouse_button::button1) {
 230                 // try to dispatch to enclosed insets first
 231                 mathcursor->dispatch(cmd);
 232                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 233                 // try to set the cursor
 234                 //delete mathcursor;
 235                 //mathcursor = new MathCursor(this, x == 0);
 236                 //metrics(bv);
 237                 //mathcursor->setPos(x + xo_, y + yo_);
 238                 return DISPATCHED;
 239         }
 240
 241         return UNDISPATCHED;
 242 }
 243
 244
 245 dispatch_result InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 246 {
 247         BufferView * bv = cmd.view();
 248         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 249
 250         if (!mathcursor || mathcursor->formula() != this) {
 251                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 252                 releaseMathCursor(bv);
 253                 mathcursor = new MathCursor(this, cmd.x == 0);
 254                 //metrics(bv);
 255                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 256         }
 257
 258         if (cmd.button() == mouse_button::button3) {
 259                 mathcursor->dispatch(cmd);
 260                 return DISPATCHED;
 261         }
 262
 263         if (cmd.button() == mouse_button::button1) {
 264                 first_x = cmd.x;
 265                 first_y = cmd.y;
 266                 mathcursor->selClear();
 267                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 268                 mathcursor->dispatch(cmd);
 269                 return DISPATCHED;
 270         }
 271
 272         bv->updateInset(this);
 273         return DISPATCHED;
 274 }
 275
 276
 277 dispatch_result InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 278 {
 279         if (!mathcursor)
 280                 return DISPATCHED;
 281
 282         if (mathcursor->dispatch(FuncRequest(cmd)) != UNDISPATCHED)
 283                 return DISPATCHED;
 284
 285         // only select with button 1
 286         if (cmd.button() != mouse_button::button1)
 287                 return DISPATCHED;
 288
 289         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 290                 return DISPATCHED;
 291
 292         first_x = cmd.x;
 293         first_y = cmd.y;
 294
 295         if (!mathcursor->selection())
 296                 mathcursor->selStart();
 297
 298         BufferView * bv = cmd.view();
 299         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 300         bv->updateInset(this);
 301         return DISPATCHED;
 302 }
 303
 304
 305 dispatch_result InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 306 {
 307         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 308         //      << " arg: '" << cmd.argument
 309         //      << " x: '" << cmd.x
 310         //      << " y: '" << cmd.y
 311         //      << "' button: " << cmd.button() << endl;
 312
 313         BufferView * bv = cmd.view();
 314
 315         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 316         bool remove_inset = false;
 317
 318         switch (cmd.action) {
 319                 case LFUN_INSET_EDIT:
 320                         lyxerr << "Called EDIT with '" << cmd.argument << "'" << endl;
 321                         if (!bv->lockInset(this))
 322                                 lyxerr << "Cannot lock math inset in edit call!" << endl;
 323                         releaseMathCursor(bv);
 324                         if (!cmd.argument.empty()) {
 325                                 mathcursor = new MathCursor(this, cmd.argument == "left");
 326                                 //metrics(bv);
 327                         } else {
 328                                 mathcursor = new MathCursor(this, true);
 329                                 //metrics(bv);
 330                                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 331                         }
 332                         // if that is removed, we won't get the magenta box when entering an
 333                         // inset for the first time
 334                         bv->updateInset(this);
 335                         return DISPATCHED;
 336
 337                 case LFUN_MOUSE_PRESS:
 338                         //lyxerr << "Mouse single press" << endl;
 339                         return lfunMousePress(cmd);
 340                 case LFUN_MOUSE_MOTION:
 341                         //lyxerr << "Mouse motion" << endl;
 342                         return lfunMouseMotion(cmd);
 343                 case LFUN_MOUSE_RELEASE:
 344                         //lyxerr << "Mouse single release" << endl;
 345                         return lfunMouseRelease(cmd);
 346                 case LFUN_MOUSE_DOUBLE:
 347                         //lyxerr << "Mouse double" << endl;
 348                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 349                 default:
 350                         break;
 351         }
 352
 353         if (!mathcursor)
 354                 return UNDISPATCHED;
 355
 356         string argument    = cmd.argument;
 357         RESULT result      = DISPATCHED;
 358         bool sel           = false;
 359         bool was_macro     = mathcursor->inMacroMode();
 360         bool was_selection = mathcursor->selection();
 361
 362         mathcursor->normalize();
 363         mathcursor->touch();
 364
 365         switch (cmd.action) {
 366
 367         case LFUN_MATH_MUTATE:
 368         case LFUN_MATH_DISPLAY:
 369         case LFUN_MATH_NUMBER:
 370         case LFUN_MATH_NONUMBER:
 371         case LFUN_CELL_SPLIT:
 372         case LFUN_BREAKLINE:
 373         case LFUN_DELETE_LINE_FORWARD:
 374         case LFUN_INSERT_LABEL:
 375         case LFUN_MATH_EXTERN:
 376         case LFUN_TABULAR_FEATURE:
 377         case LFUN_PASTESELECTION:
 378         case LFUN_MATH_LIMITS:
 379                 recordUndo(bv, Undo::ATOMIC);
 380                 mathcursor->dispatch(cmd);
 381                 break;
 382
 383         case LFUN_RIGHTSEL:
 384                 sel = true; // fall through...
 385         case LFUN_RIGHT:
 386                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 387                 //lyxerr << "calling scroll 20" << endl;
 388                 //scroll(bv, 20);
 389                 // write something to the minibuffer
 390                 //bv->owner()->message(mathcursor->info());
 391                 break;
 392
 393         case LFUN_LEFTSEL:
 394                 sel = true; // fall through
 395         case LFUN_LEFT:
 396                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 397                 break;
 398
 399         case LFUN_UPSEL:
 400                 sel = true; // fall through
 401         case LFUN_UP:
 402                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 403                 break;
 404
 405         case LFUN_DOWNSEL:
 406                 sel = true; // fall through
 407         case LFUN_DOWN:
 408                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 409                 break;
 410
 411         case LFUN_WORDSEL:
 412                 mathcursor->home(false);
 413                 mathcursor->end(true);
 414                 break;
 415
 416         case LFUN_UP_PARAGRAPHSEL:
 417         case LFUN_UP_PARAGRAPH:
 418         case LFUN_DOWN_PARAGRAPHSEL:
 419         case LFUN_DOWN_PARAGRAPH:
 420                 result = FINISHED;
 421                 break;
 422
 423         case LFUN_HOMESEL:
 424         case LFUN_WORDLEFTSEL:
 425                 sel = true; // fall through
 426         case LFUN_HOME:
 427         case LFUN_WORDLEFT:
 428                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 429                 break;
 430
 431         case LFUN_ENDSEL:
 432         case LFUN_WORDRIGHTSEL:
 433                 sel = true; // fall through
 434         case LFUN_END:
 435         case LFUN_WORDRIGHT:
 436                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 437                 break;
 438
 439         case LFUN_PRIORSEL:
 440         case LFUN_PRIOR:
 441         case LFUN_BEGINNINGBUFSEL:
 442         case LFUN_BEGINNINGBUF:
 443                 result = FINISHED;
 444                 break;
 445
 446         case LFUN_NEXTSEL:
 447         case LFUN_NEXT:
 448         case LFUN_ENDBUFSEL:
 449         case LFUN_ENDBUF:
 450                 result = FINISHED_RIGHT;
 451                 break;
 452
 453         case LFUN_CELL_FORWARD:
 454                 mathcursor->idxNext();
 455                 break;
 456
 457         case LFUN_CELL_BACKWARD:
 458                 mathcursor->idxPrev();
 459                 break;
 460
 461         case LFUN_DELETE_WORD_BACKWARD:
 462         case LFUN_BACKSPACE:
 463                 recordUndo(bv, Undo::ATOMIC);
 464                 if (!mathcursor->backspace()) {
 465                         result = FINISHED;
 466                         remove_inset = true;
 467                 }
 468                 break;
 469
 470         case LFUN_DELETE_WORD_FORWARD:
 471         case LFUN_DELETE:
 472                 recordUndo(bv, Undo::ATOMIC);
 473                 if (!mathcursor->erase()) {
 474                         result = FINISHED;
 475                         remove_inset = true;
 476                 }
 477                 break;
 478
 479         //    case LFUN_GETXY:
 480         //      sprintf(dispatch_buffer, "%d %d",);
 481         //      dispatch_result = dispatch_buffer;
 482         //      break;
 483         case LFUN_SETXY: {
 484                 lyxerr << "LFUN_SETXY broken!" << endl;
 485                 int x = 0;
 486                 int y = 0;
 487                 istringstream is(cmd.argument.c_str());
 488                 is >> x >> y;
 489                 mathcursor->setPos(x, y);
 490                 break;
 491         }
 492
 493         case LFUN_PASTE: {
 494                 size_t n = 0;
 495                 istringstream is(cmd.argument.c_str());
 496                 is >> n;
 497                 if (was_macro)
 498                         mathcursor->macroModeClose();
 499                 recordUndo(bv, Undo::ATOMIC);
 500                 mathcursor->selPaste(n);
 501                 break;
 502         }
 503
 504         case LFUN_CUT:
 505                 recordUndo(bv, Undo::DELETE);
 506                 mathcursor->selCut();
 507                 break;
 508
 509         case LFUN_COPY:
 510                 mathcursor->selCopy();
 511                 break;
 512
 513
 514         // Special casing for superscript in case of LyX handling
 515         // dead-keys:
 516         case LFUN_CIRCUMFLEX:
 517                 if (cmd.argument.empty()) {
 518                         // do superscript if LyX handles
 519                         // deadkeys
 520                         recordUndo(bv, Undo::ATOMIC);
 521                         mathcursor->script(true);
 522                 }
 523                 break;
 524
 525         case LFUN_UMLAUT:
 526         case LFUN_ACUTE:
 527         case LFUN_GRAVE:
 528         case LFUN_BREVE:
 529         case LFUN_DOT:
 530         case LFUN_MACRON:
 531         case LFUN_CARON:
 532         case LFUN_TILDE:
 533         case LFUN_CEDILLA:
 534         case LFUN_CIRCLE:
 535         case LFUN_UNDERDOT:
 536         case LFUN_TIE:
 537         case LFUN_OGONEK:
 538         case LFUN_HUNG_UMLAUT:
 539                 break;
 540
 541         //  Math fonts
 542         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 543         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 544         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 545         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 546         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 547         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 548         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 549         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 550         case LFUN_FREEFONT_APPLY:  handleFont(bv, cmd.argument, "textrm"); break;
 551         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 552
 553         case LFUN_MATH_MODE:
 554                 if (mathcursor->currentMode() == MathInset::TEXT_MODE)
 555                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 556                 else
 557                         handleFont(bv, cmd.argument, "textrm");
 558                 //bv->owner()->message(_("math text mode toggled"));
 559                 break;
 560
 561         case LFUN_MATH_SIZE:
 562 #if 0
 563                 if (!arg.empty()) {
 564                         recordUndo(bv, Undo::ATOMIC);
 565                         mathcursor->setSize(arg);
 566                 }
 567 #endif
 568                 break;
 569
 570         case LFUN_INSERT_MATRIX: {
 571                 recordUndo(bv, Undo::ATOMIC);
 572                 unsigned int m = 1;
 573                 unsigned int n = 1;
 574                 string v_align;
 575                 string h_align;
 576                 istringstream is(STRCONV(argument));
 577                 is >> m >> n >> v_align >> h_align;
 578                 m = max(1u, m);
 579                 n = max(1u, n);
 580                 v_align += 'c';
 581                 mathcursor->niceInsert(
 582                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 583                 break;
 584         }
 585
 586         case LFUN_SUPERSCRIPT:
 587         case LFUN_SUBSCRIPT:
 588         {
 589                 recordUndo(bv, Undo::ATOMIC);
 590                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 591                 break;
 592         }
 593
 594         case LFUN_MATH_DELIM:
 595         {
 596                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'" << endl;
 597                 string ls;
 598                 string rs = split(cmd.argument, ls, ' ');
 599                 // Reasonable default values
 600                 if (ls.empty())
 601                         ls = '(';
 602                 if (rs.empty())
 603                         rs = ')';
 604
 605                 recordUndo(bv, Undo::ATOMIC);
 606                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 607                 break;
 608         }
 609
 610         case LFUN_SPACE_INSERT:
 611         case LFUN_MATH_SPACE:
 612                 recordUndo(bv, Undo::ATOMIC);
 613                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 614                 break;
 615
 616         case LFUN_UNDO:
 617                 bv->owner()->message(_("Invalid action in math mode!"));
 618                 break;
 619
 620
 621         case LFUN_EXEC_COMMAND:
 622                 result = UNDISPATCHED;
 623                 break;
 624
 625         case LFUN_INSET_ERT:
 626                 // interpret this as if a backslash was typed
 627                 recordUndo(bv, Undo::ATOMIC);
 628                 mathcursor->interpret('\\');
 629                 break;
 630
 631         case LFUN_BREAKPARAGRAPH:
 632         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 633         case LFUN_BREAKPARAGRAPH_SKIP:
 634                 argument = "\n";
 635                 // fall through
 636
 637 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 638 // handling such that "self-insert" works on "arbitrary stuff" too, and
 639 // math-insert only handles special math things like "matrix".
 640         case LFUN_INSERT_MATH:
 641                 recordUndo(bv, Undo::ATOMIC);
 642                 mathcursor->niceInsert(argument);
 643                 break;
 644
 645         case -1:
 646         case LFUN_SELFINSERT:
 647                 if (!argument.empty()) {
 648                         recordUndo(bv, Undo::ATOMIC);
 649                         if (argument.size() == 1)
 650                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 651                         else
 652                                 mathcursor->insert(argument);
 653                 }
 654                 break;
 655
 656         case LFUN_ESCAPE:
 657                 if (mathcursor->selection())
 658                         mathcursor->selClear();
 659                 else
 660                         result = UNDISPATCHED;
 661                 break;
 662
 663         case LFUN_INSET_TOGGLE:
 664                 mathcursor->insetToggle();
 665                 break;
 666
 667         case LFUN_DIALOG_SHOW:
 668                 result = UNDISPATCHED;
 669                 break;
 670
 671         case LFUN_DIALOG_SHOW_NEW_INSET: {
 672                 string const & name = argument;
 673                 string data;
 674                 if (name == "ref") {
 675                         RefInset tmp(name);
 676                         data = tmp.createDialogStr(name);
 677                 }
 678
 679                 if (data.empty())
 680                         result = UNDISPATCHED;
 681                 else {
 682                         bv->owner()->getDialogs().show(name, data, 0);
 683                 }
 684         }
 685         break;
 686
 687         case LFUN_INSET_APPLY: {
 688                 string const name = cmd.getArg(0);
 689                 InsetBase * base =
 690                         bv->owner()->getDialogs().getOpenInset(name);
 691
 692                 if (base) {
 693                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
 694                         result = base->localDispatch(fr);
 695                 } else {
 696                         MathArray ar;
 697                         if (createMathInset_fromDialogStr(cmd.argument, ar)) {
 698                                 mathcursor->insert(ar);
 699                                 result = DISPATCHED;
 700                         } else {
 701                                 result = UNDISPATCHED;
 702                         }
 703                 }
 704         }
 705         break;
 706
 707         default:
 708                 result = UNDISPATCHED;
 709         }
 710
 711         if (result == DISPATCHED)
 712                 bv->updateInset(this);
 713
 714         mathcursor->normalize();
 715         mathcursor->touch();
 716
 717         Assert(mathcursor);
 718
 719         if (mathcursor->selection() || was_selection)
 720                 toggleInsetSelection(bv);
 721
 722         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 723             result == UNDISPATCHED) {
 724                 fitInsetCursor(bv);
 725                 revealCodes(bv);
 726                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 727         } else {
 728                 releaseMathCursor(bv);
 729                 bv->unlockInset(this);
 730                 if (remove_inset)
 731                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 732         }
 733
 734         return result;  // original version
 735 }
 736
 737
 738 void InsetFormulaBase::revealCodes(BufferView * bv) const
 739 {
 740         if (!mathcursor)
 741                 return;
 742         bv->owner()->message(mathcursor->info());
 743
 744 #if 0
 745         // write something to the minibuffer
 746         // translate to latex
 747         mathcursor->markInsert();
 748         ostringstream os;
 749         write(NULL, os);
 750         string str = os.str();
 751         mathcursor->markErase();
 752         string::size_type pos = 0;
 753         string res;
 754         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 755                 if (*it == '\n')
 756                         res += ' ';
 757                 else if (*it == '\0') {
 758                         res += "  -X-  ";
 759                         pos = it - str.begin();
 760                 }
 761                 else
 762                         res += *it;
 763         }
 764         if (pos > 30)
 765                 res = res.substr(pos - 30);
 766         if (res.size() > 60)
 767                 res = res.substr(0, 60);
 768         bv->owner()->message(res);
 769 #endif
 770 }
 771
 772
 773 InsetOld::Code InsetFormulaBase::lyxCode() const
 774 {
 775         return InsetOld::MATH_CODE;
 776 }
 777
 778
 779 int InsetFormulaBase::ylow() const
 780 {
 781         return yo_ - dim_.asc;
 782 }
 783
 784
 785 int InsetFormulaBase::yhigh() const
 786 {
 787         return yo_ + dim_.des;
 788 }
 789
 790
 791 int InsetFormulaBase::xlow() const
 792 {
 793         return xo_;
 794 }
 795
 796
 797 int InsetFormulaBase::xhigh() const
 798 {
 799         return xo_ + dim_.wid;
 800 }
 801
 802
 803 /////////////////////////////////////////////////////////////////////
 804
 805
 806 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 807                                      bool, bool)
 808 {
 809 #ifdef WITH_WARNINGS
 810 #warning pretty ugly
 811 #endif
 812         static InsetFormulaBase * lastformula = 0;
 813         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 814         static MathArray ar;
 815         static string laststr;
 816
 817         if (lastformula != this || laststr != str) {
 818                 //lyxerr << "reset lastformula to " << this << endl;
 819                 lastformula = this;
 820                 laststr = str;
 821                 current = ibegin(par().nucleus());
 822                 ar.clear();
 823                 mathed_parse_cell(ar, str);
 824         } else {
 825                 ++current;
 826         }
 827         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 828
 829         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 830                 if (it.cell().matchpart(ar, it.back().pos_)) {
 831                         bv->unlockInset(bv->theLockingInset());
 832                         if (!bv->lockInset(this)) {
 833                                 lyxerr << "Cannot lock inset" << endl;
 834                                 return false;
 835                         }
 836                         delete mathcursor;
 837                         mathcursor = new MathCursor(this, true);
 838                         //metrics(bv);
 839                         mathcursor->setSelection(it, ar.size());
 840                         current = it;
 841                         it.jump(ar.size());
 842                         bv->updateInset(this);
 843                         return true;
 844                 }
 845         }
 846
 847         //lyxerr << "not found!" << endl;
 848         lastformula = 0;
 849         return false;
 850 }
 851
 852
 853 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 854                                       bool a, bool b)
 855 {
 856         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed" << endl;
 857         return searchForward(bv, what, a, b);
 858 }
 859
 860
 861 bool InsetFormulaBase::display() const
 862 {
 863         return par()->asHullInset() && par()->asHullInset()->display();
 864 }
 865
 866
 867 string InsetFormulaBase::selectionAsString() const
 868 {
 869         return mathcursor ? mathcursor->grabSelection() : string();
 870 }
 871
 872 /////////////////////////////////////////////////////////////////////
 873
 874
 875 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 876 {
 877         BufferView * bv = cmd.view();
 878         // use selection if available..
 879         //string sel;
 880         //if (action == LFUN_MATH_IMPORT_SELECTION)
 881         //      sel = "";
 882         //else
 883
 884         string sel = bv->getLyXText()->selectionAsString(*bv->buffer(), false);
 885
 886         if (sel.empty()) {
 887                 InsetFormula * f = new InsetFormula(bv);
 888                 if (openNewInset(bv, f)) {
 889                         bv->theLockingInset()->
 890                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 891                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 892                         // always changing to mathrm when opening an inlined inset
 893                         // -- I really hate "LyXfunc overloading"...
 894                         if (display)
 895                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 896                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 897                 }
 898         } else {
 899                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 900                 // formula otherwise
 901                 InsetFormulaBase * f;
 902                 if (sel.find("\\newcommand") == string::npos &&
 903                                 sel.find("\\def") == string::npos)
 904                         f = new InsetFormula(sel);
 905                 else
 906                         f = new InsetFormulaMacro(sel);
 907                 bv->getLyXText()->cutSelection(true, false);
 908                 openNewInset(bv, f);
 909         }
 910         cmd.message(N_("Math editor mode"));
 911 }
 912
 913
 914 void mathDispatch(FuncRequest const & cmd)
 915 {
 916         BufferView * bv = cmd.view();
 917         if (!bv->available())
 918                 return;
 919
 920         switch (cmd.action) {
 921
 922                 case LFUN_MATH_DISPLAY:
 923                         mathDispatchCreation(cmd, true);
 924                         break;
 925
 926                 case LFUN_MATH_MODE:
 927                         mathDispatchCreation(cmd, false);
 928                         break;
 929
 930                 case LFUN_MATH_IMPORT_SELECTION:
 931                         mathDispatchCreation(cmd, false);
 932                         break;
 933
 934                 case LFUN_MATH_MACRO:
 935                         if (cmd.argument.empty())
 936                                 cmd.errorMessage(N_("Missing argument"));
 937                         else {
 938                                 string s = cmd.argument;
 939                                 string const s1 = token(s, ' ', 1);
 940                                 int const nargs = s1.empty() ? 0 : atoi(s1);
 941                                 string const s2 = token(s, ' ', 2);
 942                                 string const type = s2.empty() ? "newcommand" : s2;
 943                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), nargs, s2));
 944                         }
 945                         break;
 946
 947                 case LFUN_INSERT_MATH:
 948                 case LFUN_INSERT_MATRIX:
 949                 case LFUN_MATH_DELIM: {
 950                         InsetFormula * f = new InsetFormula(bv);
 951                         if (openNewInset(bv, f)) {
 952                                 bv->theLockingInset()->
 953                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 954                                 bv->theLockingInset()->localDispatch(cmd);
 955                         }
 956                         break;
 957                 }
 958
 959                 default:
 960                         break;
 961         }
 962 }